Elevator controlling device



t e e h s S +u e e h s E w d O M 0 m Inventor.

Z Attorney.

atented May 1,1894.

W1tnesses (No Model.) 4 Sheets-Sheet 2.

F. E HERDMAN. ELEVATOR CONTROLLING DEVICE.

N0. 5 19,119. PatentedMaJy 1,1894.

(No Model.) 4 Sheets-Sheet 3.

F. B. HERDMANV ELEVATOR CONTROLLING DEVIGE.

No. 519,119; Patented May 1, 1894.

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I f T Z M "T Witnesses "J1: Inventor.

3 I aw swam Attorney.

THE NATIONAL UYNOGRAPHING COMPANY.

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4 Sheets-Sheet 4.

(No Model.)

F. E. HERDMAN. ELEVATOR GONTROLLINGDEVIGE.

No. 519,119. Patented May 1," 1s-94.

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UNITED STATES PATENT QFFICE.

FRANK E. HERDMAN, or WINNETKA, ILLINOIS.

ELEVATOR CONTROLLING DEVICE.

SPECIFICATION forming part of Letters Patent No. 519,119, dated May 1,1894:.

Application filed November 22,1893- Serial No. 491,626. (No model.)

in Elevator Controlling Devices, of which the following is a full,clear, and exact description, reference being hadto the accompany- 1ngdrawings,which form a part of this specification.

My invention has for its object to provide ready means in the car andconnected with the elevator operating mechanism, which will be readilycontrolled by the operator.

In the drawingsr-Figurel is a front ele vation partially in sect-ion ofa portion of the elevator operating mechanism and the elevatorcontrolling mechanism. Fig. 2 is a modified form of the same. Fig. 3 isa detail view of portion of Fig. 2. Fig. 4 is an enlarged frontelevation of a portion of the car showing the lever and friction devicesfor operating the cable. Fig. 5 is a section on the line oax of Fig. 4.Fig. 6 is a View similar to that shown in Fig. 4 showing modified formof friction devices. Fig. 7 is a section on the line y-y, .Fig. 6. Fig,8 is a view similar to that of Fig. 4, showing a modified arrangement offriction devices. Fig. 9 is a plan V ew of the arrangement shown in Fig.8. Fig. 10 is a diagram showing the course of the cables with relationto the arrangement of frlction devices shown in Figs. 8 and 9. Fig.

11 is a view similar to that of Fig. 4., showing another modifiedarrangement of friction devices. Fig. 12 is a plan view of thearrangement shown in Fig. 11. Fig. 13 is adiagram showing the course ofthe cables with relat-lon to the arrangement of friction devices shownin Figs. 11 and 12. Fig. 14. is a sectional view on the line cc, Fig. 5.p

T is the elevator shaft; T the elevator car; 1. the lifting cable whichpasses round the sheaves, t, 1?, around the fixed pulley't and thenaround the sheave i upon the operating piston i t is the valvecontrolling the admission of the fluid to the operating cylinder 15*.

t is the inlet from the fluid source to the valve, and t the pipeleading from the valve to the'cylinder.

B B are the operating cables which pass up the shaft T beside the car Tand around the fixed sheave b at the top of the shaft T. On the outsideof the car is placed the lever 0 shown in detail in Figs. 4:, 5, 6 and7. This lever is pivoted at D, and connected at its pivot point with thecar, and on this same pivot is placed the wheel F. At the other end ofthe lever O is placed the wheel E. The wheel F is on the outside of thecable B, and the wheel E is on the outside of the ca ble B 0 is slottedat c, and a block H has a bearing adapted to slide in said slot. To thissliding block is pinned the sheave G. This sheave is between the twowheels E and F, and, as may be clearly seen in the detail figures, isflanged. The position of these sheaves is such that the cables B and Bare free from the sheave G when the sheave is in its central position.To the sliding block H is attached the arm N bent, as shown in Figs. 5and 7, the bent portion of arm N passing through a slot in the frame ofthe elevator car, and having the plate 1, projecting from which plate Zare the handles K and L. Through this same slot and through a slot inthe plate Z, a handle I, attached to the lever 0, passes. The cables Band B may be connected with the operating mechanism in various ways. Ihave shown two. In Fig. 1,1 have shown it connected to a lever B, havingon eachside of its fulcrum point springs 'r, r. This lever is connectedwith the piston of the piston valve S, which has the inlet port 0', andports leading to the cylinder M, one on each side of the piston m. Insaid cylinderM this pistonm is connected with the valve t. By thisarrangement the main valve 15 is operated by the piston in cylinder M,which is controlled by the piston valve S, thereby relieving theoperating cables. B and B of the work of operating valve 2?. In place ofconnecting the cables B and B with the auxiliary valve in the mannerjust described, the cables B and B can be connected, as shown in Fig. 2,in which case the cables pass around the sheave A, upon the shaft ofwhich is a pinion, a, which works in the rack,-a', on the valve stom orof the main valve i a To prevent the valve i from oper- Between thesetwowheels the lever ating too quickly, I attach'to the valve a pistoncontained in the cylinder 0. The upper side and under side of thiscylinder are connected by pipe P, containing a cock Q. This cock opensin'both directions, and in consequence of the movement of the valve,requiring the contents of one side of this cylinder to be forced to theother, the greatest speed at which the valve can be operated can benicely adjusted by adjusting the cock Q. In order to operate themechanism with either one of these connections, suppose the elevator tobe at rest and the operator desires to cause the same to ascend; theoperator grasps the handles I and L and forces the handle L toward thehandle I, which moves the sheave G toward the sheave E, clamping thecable B between the sheaves G and E. After 'clamping, the handle I ismoved upward in the speed desired, he relieves the handle L and allowsthe cable B to pass freely, when the elevator continues at that speed.If he desires to stop, he grasps the handle K with the handle I andclamps the cable B between the sheave G and the wheel F. As the cable Boperates the operating mechanismin the opposite direction to the cable Bthen, owingto the motion of the car, the mere clamping of the cable Boperates the operating mechanism to stop the supply and stop theelevator. To descend the operator grasps the handles I and L in the samemanner as heretofore described, in ascending, but pushes the lever 0downward to start the elevator, when to increase the motion or stop ithe operates it as before described for stopping when ascending.

In place of the wheels E and F, blocks E and F can be attached to thelever O, as shown in Figs. 6 and 7, the cables being allowed to slide intheir blocks, and if desired even the sheave G may be replaced by ablock.

In Figs. 8, 9 and 10, I have shown the operating cables wound aroundsheaves E and F corresponding respectively to the sheaves E and F ofFig. 4. The lever C is not slotted, while a flange non the arm N has abearing on the lever G and is adapted to slide thereupon. In thisarrangement, the sheaves E and F are of course loosely journaled and theoperating cables instead of touching them tangentially, passes oncearound each of them.

Consequently the travel of the car will cause the sheaves E and F torevolve. This arrangement permits the substitution for the largeintermediate pulley G of a small friction block G. To start the car, thefriction block, which is operated precisely as is the.

large intermediate sheave of Fig 4, is brought in tight contact with theflanges of the sheave E, and the lever thrown in the direction in whichthe operator desires to start thecar. This will draw up the cable andoperate the valve. In stopping, the friction block is s n1- ply broughtin contact with the revolving sheave F, thereby checking its motion andthus stopping the cable.

In Figs. 11, 12 and 13, I show two pairs of sheaves, the sheaves of eachpair being mounted on a common axis. The operating cable, as Fig. 13will show, in its downward extension passes under one sheave, E of onepair, and over one sheave F of the other palr, while on its return itpasses over the remaining sheave E of the first named pair, and underthe remaining sheave, F of the other pair. Obviously, the friction blockcannot be located in this construction between the pairs of sheaves,owing to the crossing of the cable. Instead there are two frictionblocks located respectively at opposite ends of the lever N. By bringingblock, G in contact with sheave E and block G in contact with sheave Fthe elevator can be controlled in the manner before described. Toprevent eitherfriction block from clamping more than one of thecorresponding pair of pulleys, the pulleys, F. and F may be made largerthan pulleys, E and F as illustrated.

The devices hereinbefore described may be modified, and still embody myinvention, although the preferable constructions are those which I havedescribed.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

1. The combination with the elevator operating mechanism and car ofoperating cables, connection between said cables and the operatingmechanism, a lever, friction devices upon said lever adjacent to whichthe cables pass, said lever being slotted, a friction device having abearing adapted to move in said slot and adjacent to which said cablespass, and an arm connected to said friction device, substantially asdescribed.

2. The combination with the elevator operating mechanism and car, ofoperating cables, connection between said cables and operatingmechanism, a lever, friction devices upon said lever adjacent to whichthe cables pass, said lever being slotted, a block in said slot, afriction device connectedto said block adjacent to which the said cablespass, and an arm connected to said block, substantially as described.

3. The combination with the elevator operating mechanism of operatingcables, connection between said cables and the operating mechanism, alever, wheels on said lever adjacent to said cables, said lever beingslotted,

ating mechanism, a -lever, wheels on said levice having abearingadaptedto move in said slot and adjacent to which said cables pass, and an armconnected to said friction device, said arm being bent and passingthrough a slot in the car, and provided with abifurcated end, and saidlever provided with a handle passing through said slot, substantially asdescribed.

6. The combination with the elevator operating mechanism and car, ofoperating cables, connection betweensaid cables and operating mechanism,a lever, friction devices upon sa d lever adjacent to which the cablespass, said lever being slotted, a block in said slot,a friction deviceconnected to said block adjacent to which the cables pass, and an armconnected to saidblock, said arm being bent and passing through a slotin the car and provided with a bifurcated end, and said lever beingprovided with a handle passing through said slot, substantially asdescribed.

7. The combination with the elevator operating mechanism of operatingcables, connec-' tion between said cables and operating mechanlsm, alever, wheels on said lever adjacent to said cables, said lever beingslotted, awheel havlng abearing adapted to move in said slot, said wheelbeing adjacent to said cables, and an arm connected to said wheel, saidarm being bent and passingthrough a slot in the car and provided-with abifurcated end, and said lever being provided with a handle passingthrough said slot, substantially as described. 8. The combination withthe elevator operating mechanism and car, of operating cables,connect1on between said cables and operating mechanism, a lever, wheelson said lever adjacent to said cables, said lever being slotted, a blockin said slot, a wheel connected to sa d block, an arm-connected to saidblock, saldarm being bent and passing through a slot 1n the car andprovided with a bifurcated end, andsaid lever being provided with ahandle passing through said slot, substantially as described.

9. The combination with the elevator operating mechanism and car, ofoperating cables,

connection between said cables and the operating mechanism, a levercarried bythe car, friction devices upon said lever adjacent to saidcables, and a friction device having a bearing adapted to move along andwith said lever, substantially as described.

10. In combination with the elevator operating mechanism. and car,operating cables, connection between said cables and the operwheels uponsaid lever adjacent to said cables, and a wheel adapted to move alongand w1th said lever, substantially as described.

11. The combination with the elevator op- ;erating mechanism, comprisingan operating cylinder valve an elevator car, and operating cables, of acontrolling device consisting of a lever, frictiondevices upon saidlever adjacent to which the cablespass, said lever being slotted,afriction device having a bearing ,adapted to move in said slot andadjacent to which said cables pass,an arm connected to lating mechanism,a lever carried by the car,

said friction devices, and connection between said controlling deviceand said valve for regulating the speed of the movement of said valve.substantially as described.

12. The combination with the elevator operating mechanism, comprising anoperating cylinder valvean elevator car, and operating cables, of acontrolling device consisting of a lever, friction devices upon saidlever adjacent to which the cables pass, said lever being slotted, ablock in said slot, a friction device connected to said block adjacentto which the said cables pass, and an arm connected to said block; andconnection between said controlling device and said valve for regulatingthe speed .of the movement of said valve, substantially as described.

13. The combination with the elevator operating mechanism, comprisinganoperating cylinder valve an elevator car, and operating cables, of acontrolling device consisting of a lever, wheels on said lever ad acentto said cables, said lever being slotted, a wheel having a bearingadapted to move in said slot, said wheel being adjacent to said cables,and an arm connected to said wheel, and connection between saidcontrolling device and said valve for regulating the speed of themovement of said valve, substantially as described.

14. The combination with the elevator operating mechanism,comprising anoperating cylinder valve an elevator car, and operating cables, of acontrolling device consisting of a lever, wheels on said lever, adjacentto said cables, said lever being slotted, a blockin said slot, a wheelupon said block and an arm connected to said block, and, connectionbetween said controllingdevice and said valve for regulating the speedof the movement of said valve, substantially as described.

15. The combination with the elevator operating mechanism, comprising anoperating cylinder valve an elevator car, and operating cables, of acontrolling device consisting of a lever, friction devices upon saidlever adjacent to which the cables pass, said lever being slotted, afriction device having a bearing adapted to move in said slot andadjacent to which said cables pass, an arm connected to said frictiondevice, said arm being bent-and passing through a slot in the car andpro vided with a bifurcated end, and said lever being provided with ahandle passing through said slot, and connection between saidcontrolling device and said valve for regulating the speed of themovement of said valve, substantially as described.

16. The combination with the elevator operating mechanism, comprising anoperating cylinder valve an elevator car, and operating cables, of acontrolling device consisting of a lever, friction devices upon saidlever adjacent to which the cables pass, said leverbeing slotted, ablock in said slot, a friction device connected to said block adjacentto which the cables pass, an arm connected to said block, said arm beingbent and passing through a slot in the car and provided with abifurcated end, and said lever being provided with a handle passingthrough said slot, and connection between said controlling device andsaid valve for regulating the speed of the movement of said valve,substantially as described.

17. The combination with the elevator operating mechanism, comprising anoperating cylinder valve an elevator car, and operating cables, of acontrolling device consisting of a lever, wheels on said lever adjacentto said cables, said lever being slotted, a Wheel having a bearingadapted to move in said slot, said wheel being adjacent to said cables,an arm connected to said wheel, said arm being bent and passing througha slot in the car and provided with a bifurcated end, and said leverbeing provided with a handle passing through said slot, and connectionbetween said controlling device and said valve for regulating the speedof the movement of the said valve, substantially as described.

18. The combination with the elevator operating mechanism, comprising anoperating cylinder valve an elevator car, and operating cables, of acontrolling device consisting of a lever, Wheels on said lever adjacentto said cables, said lever being slotted, a block in said slot, a Wheelconnected to said block, an

arm connected to said block, said arm being bent and passing through aslot in the car and provided with a bifurcated end, and said lever beingprovided with a handle passing through said slot, and connection betweensaid controlling device and said valve for regulating the speed of themovement of said valve, substantially as described.

19. The combination with the elevator operating mechanism, an elevatorcar and operating cables, of a controlling device consisting of a levercarried by the car, friction devices upon said lever adjacent to saidcables, a friction device adapted to move along and with said lever, andconnection between said controlling device and said operating mechanismfor regulating the speed of the movement of said operating mechanism instarting and stopping the same, substantially as described.

20. The combination with the elevator operating mechanism, an elevatorcar and operating cables, of a controlling device consisting of a levercarried by the car, wheels upon said lever adjacent to said cables, awheel adapted to move along and with said lever, and connection betweensaid controlling device and said operating mechanism for regulating thespeed of the movement of said operating mechanism in starting andstopping the same, substantially as described.

21. The combination with the elevator operating mechanism and car, ofoperating cables, connection between said cables and the operatingmechanism, a lever carried by the car, friction devices upon said leveradjacent to said cables, and another friction device adapted to movewith said lever, said last named friction device and the frictiondevices upon said lever being adapted to. have a relative movementtoward each other, substantially as described.

In testimony of Whichinvention I have hereunto set my hand.

FRANK E. I-IERDMAN.

